Lavochkin La-7
1944
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Lavochkin La-7

The ultimate refinement of the basic La-5 rather than a new design, the La-7 was developed from the autumn of 1943 under the bureau designation of La-120. This embodied the results of a TsAGI wind tunnel programme aimed at defining areas in which the basic La-5FN could be aerodynamically improved. Incorporating the modified wing structure (metal spars replacing the wooden box spars) intended for application to the definitive La-5FN (but not to be introduced on that fighter until the late spring of 1944), a revised inboard wing leading edge and an entirely new cowling for the Shvetsov M-82FN engine, the La-120 was first flown in November 1943. In the following spring it entered production as the La-7. The intended armament comprised three 20mm Berezina B-20 cannon, but while this armament was installed in aircraft built at Yaroslavl, those built at Moscow reverted to the twin ShVAK cannon of the La-5FN. Variants included the tandem two-seat La-7UTI trainer, the La-7TK with a pair of TK-3 turbo-superchargers, and the rocket-boosted La-7R. The La-7TK was test flown in July- August 1944, but was destroyed when a turbo-supercharger exploded. Another example was fitted with the 2000hp ASh-71TK, trials soon being discontinued owing to the erratic behaviour of this engine's turbosuperchargers.

The La-7R, of which two prototypes were tested, was fitted in the rear fuselage with an RD-lKhZ liquid rocket motor of 300kg thrust, the first prototype being destroyed during the initial take-off run in October 1944. Flight testing of the second prototype continued until February 1945, and a further example - a conversion of one of the original prototype airframes and therefore referred to as the La-120R - entered test in January 1945, this having an improved rocket motor and local airframe structural changes. Testing of the La-120R continued until late 1946.

A total of 5,753 La-7s had been manufactured when production ended in 1946.

Lavochkin La-7


Specification 
 CREW1
 WEIGHTS
    Take-off weight3400 kg7496 lb
    Empty weight2620 kg5776 lb
 DIMENSIONS
    Wingspan9.8 m32 ft 2 in
    Length8.6 m28 ft 3 in
    Height2.60 m9 ft 6 in
    Wing area17.59 m2189.34 sq ft
 PERFORMANCE
    Max. speed680 km/h423 mph
    Cruise speed450 km/h280 mph
    Ceiling11800 m38700 ft
    Range990 km615 miles

3-View 
Lavochkin La-7A three-view drawing (1653 x 1193)

Comments
Ron, toolkeeper123=rr.com, 22.02.2014

Tails,
Could you elaborate?

When Germans looked down there noses at captured Soviet planes for their lack of western style sophistication, they had contempt like you and most all the rest of us in the West. But this faded after a Russian winter or 2. The crude Russian planes were in the air when the luftwaffe was frozen
in place.

Fact is Soviet fighters were tailored to their own theater of combat like no others. Low to medium altitude, short range tactical air superiority in spite of the canopy glass not being the clearest or the gunsight behind the times.
They would not stack up as well in the wide ranging Pacific theater where the USA and Japan ruled.

Their pilots too were mostly not as well trained perhaps.
Still, the top scoring Allied aces were Soviet!

While I'm not communist or anything, if I were Russian maybe I would like this site also, to Wills point.

If we get past our own propaganda, we have to recognize the efficiency of Soviet weapons and what they managed with the limited power their designers had to work with. Even their Lavochkin and Yakovlev wartime production is on par with Bf 109 and Fw 190 numbers, never mind that of other fighters (only the Spitfire numbers approach such volume). Those 5 are on top with 20 to 35 thousand during WW2
(the Sturmovik is up there too but it's not a single seat fighter so I won't mention it).

Ron, toolkeeper123=rr.com, 07.01.2014

Who could help me translate from russian to englsh?

tails, 07.12.2012

no just no

Klaatu83, klaatu83=lycos.com, 19.08.2012

Although the LaGG-3 was a disappointment, Lavochkin went back to the drawing board and got it right with the LA-5FN. The LA-7 was even better. Both are considered to be among the best fighters of World War II. And yes, a LA-7 DID shoot down a Me-262!

anti-redneck, vukashin88=gmail.com, 26.04.2012

Just wanted to say - laughing out loud at that Will Gant guy. Go get you' gun redneck and teach these POS's how to make a site. Oh these people...
P.S. Real communism is dead for 25 years already.

anti-redneck, vukashin88=gmail.com, 26.04.2012

Just wanted to say - laughing out loud at that Will Gant guy. Go get you' gun redneck and teach these POS's how to make a site. Oh these people...
P.S. Real communism is dead for 25 years already.

Sven, 21.01.2012

Hey Will.
Spelling. 2/10
Grammar. 1/10
Knowledge. 1/10
W think that's 4 out of a possible 30. Some research into Barbarosa would serve you well.

Will Gant, Longtalldaddy55=yahoo.com, 21.01.2012

The La7 is most games is optomized per the propoganda here. Russian fuel quality alone insured that their cruddy air force would only start 70% of the time. The Russian's had interesting armor, but nothing for an air force that ever worried a German pilot. They simply had so many bad planes, the Messershmidt's were outnumbered everytime. Owen can't even get the model type right when quoting his joy of flying this commie POS online.

Aaron, eaglefeather43410=yahoo.com, 26.06.2011

In November 1944 all production irregularities had been worked out and production resumed of the La-7. This later production models performance was: Same Engine. 382mph/SL.
421-423mph/20,200ft. Climb: 4,300fpm/SL. 16,400ft/4.2min. Ceiling: 34,450ft. Test weight 7,105 lbs. 2xShVAK (20mm).
The last war time production model was unchanged except the armament. In February 1945 3xB-20s became the standard armament. Weight was increased to 7,325 but performance was unchanged. 115 La-7 were lost to all military causes (less than half of these to aerial combat) at the same time unquestionably accounting for more than 3,100 aerial victories. That's about 27:1 win/loss ratio for all military losses. Handling and control harmony were superlative. Roll rate was considered equal to any Fw-190A.
Entire formations of German aircraft were routinely decimated by flights of La7s. 10,009 La-5 and 5,753 La-7 had been produced by the end of the Great Patriotic War.

Aaron, eaglefeather43410=yahoo.com, 26.06.2011

The first series production La-7 were produced in March-April of 1944. That Summer they were handed over to the pilots of 63 GIAP for operational trials. Though they had inferior performance to what was expected the pilots were thrilled to receive the La-7 and enjoyed great success with this aircraft until engine problems and wing spar failures forced Marshal Novikov to step in an ground all La-7s until the problems could be rectified. The causes were dirt getting into the supercharger air intake at the wingroots and improper execution of lightening holes in the structure. Typical performance: Engine: ASh-82FN/1,850hp.
362mph/SL. 413mph/20,200ft. Climb: 4,000fpm/SL. 16,400ft/4.6min. Ceiling: 31,000ft. Armament: 2xShVAK. Test weight: 7,179 lbs.

Peredtz, abyeo=gmail.com, 23.03.2010

Ron, the source page for the shot Mustang photos describers the incident in Russian as having happened on April 17, 1945 over Berlin. It is also mentioned that it was one of the two Mustangs shot by Kozhedub that day. This really was friendly fire since American mistakingly fighters attacked Kozhedub after he had tried to cover B-17s by engaging German Messerschmitts. The Americans misinterpreted his intentions and tried to shoot him down. He says he realised these were allies only after one of them had gone down for an emergency landing and another one had exploded midair. The fact was later on proven by the processed guncam film. The incident was not widely covered at the time, cause the survivor Mustang pilot believed he was downed by a red-nosed FW. The info here is coming from the preface to the book of memoirs by Kozhedub. Quoted from there at http://www.airpages.ru/ru/la7_2.shtml, at least.

Ron, toolkeeper123=roadrunner.com, 12.02.2010

Eliko,
When and where was that shot? Europe or Korea?
Probably Europe if the camera is on an La-7, but exactly where? Interesting photo!
Is there anything about the circumstances of this 'friendly fire' combat?
I've read in the past about such a clash with Yaks and Mustangs. Please tell me more about this La-7 vs P-51 incident.

eliko, eliko116=rambler.ru, 08.10.2009

guncam Kozhedub shut down Mustang ...
http://www.airpages.ru/img/ru/la7-must.jpg

Ronald, toolkeeper123=roadrunner.com, 18.06.2009

Ivan Kozhedub was the top scoring Allied ace in history and he flew Lavochkin fighters. He even shot down a German Me 262 jet with the stock La-7 (not the one with rocket assist). The Spitfire XIV was first to do so in the West. The La-7 units would get the call when low flying bandits were too fast for the Yak-9U to catch. The version with 3 light-weight B-20 nose-cannon was particularly effective. It was a beautiful aerobatic dogfighter. So was it's rival, the Yak, but the Lavochkin could take more punishment. It was right at home in a rugged ground war since it excelled at low to medium altitudes.

Ronald, toolkeeper123=adelphia.net, 02.09.2008

Salvo of fire = 3.4kg / sec. 3 cowl B-20 synchronized CN.
Climb to 5km = 5.3 min.
360 turn = around 20 sec.

306TigrCharlie, tigercharlie=clix.pt, 04.04.2008

The best and more balanced speed/rate-of-climb/rate-of-turn/manouverability aircraft of the WW2

A real joy and thrill to fly!

yattra1, yattra1=yahoo.com, 06.08.2007

The la-7 was the first plane to shoot down a me-262.

Don, cannon33=buffalo.com, 14.07.2007

More about armament?

Owen D.T Thompson, owentom5=hotmail.com, 28.11.2006

I fly online and cant tell u how much i enjoy shooting down guys flying ww2 german/british/japanese/american aircraft!! the il-7 just puts a smile on my face! happy hunting aka LONEWOLF5.

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